docs: def set_options(self, **options):
          """
          Set options and handle deprecation.
          """
          ignore_etag = options.pop('ignore_etag', False)
          disable = options.pop('disable_collectfast', False)
          if ignore_etag:
              warnings.warn(
                  "--ignore-etag is deprecated since 0.5.0, use "
                  "--disable-collectfast instead.")
          if ignore_etag or disable:
              self.collectfast_enabled = False
          super(Command, self).set_options(**options)